UNT Libraries Government Documents Department - 9 Matching Results

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Automatic Fire-Alarm System.

Description: Patent for an automatic fire alarm system with a simple arrangement of alarm devices (positioned throughout different rooms) with sound or visual indicators for fire awareness and closer thermal circuits (assisted with spring contact and circuit closer). The automatic fire alarm system will have a more immediate reaction by making an alert noise or visual and propping open the spring contact.
Date: March 16, 1915
Creator: Ammons, John Burck; Ammons, Evander & McGaffey, Otis
Item Type: Refine your search to only Patent

Cheese-Hoop.

Description: Patent for improvements in cheese hoops by creating a suitable frame work to support a wire gauze or net on the sides and the top of the hoop. This protects the cheese when cutting out a portion of the cheese.
Date: March 30, 1915
Creator: Cain, William R. & Cain, John R.
Item Type: Refine your search to only Patent

Fire-Alarm System.

Description: Patent for "an alarm system consisting of an electric circuit within which as thermally operated circuit closer was placed, which was adapted to sound an alarm when the circuit closer had been closed by an operation of the thermal elements of the circuit closer." (lines 78-84) including instructions and illustrations.
Date: March 16, 1915
Creator: Ammons, John B.
Item Type: Refine your search to only Patent

Roller Boring-Drill

Description: Patent for a roller boring drill in which "the cutting rollers are arranged on the drill in a novel manner." Object of invention is to keep the drill centered in the hole to prevent wobbling.
Date: March 2, 1915
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent

Screen Attachment

Description: Patent for window and door screens to prevent the entrance of insects inside and prevents the escape of those already inside, which inevitably collect on the inside of the screen.
Date: March 9, 1915
Creator: Simons, William S.
Item Type: Refine your search to only Patent
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